Dr. Cohen is currently the Chief of Laboratory of Infectious Diseases and also Chief in Medical Virology at NIAID, NIH. He received his M.D. from The Johns Hopkins University and was a resident in medicine at Duke University. Following a medical staff fellowship at NIH, he was a clinical fellow in infectious diseases at the Brigham and Women’s Hospital and an instructor in medicine at the Harvard University. Dr. Cohen is a world expert on human herpes viruses studies, including Epstein-Barr virus (EBV), herpes simplex virus (HSV), varicella-zoster virus (VZV), and cytomegalovirus (CMV). Dr. Cohen is collaborating with UBP on evaluation of the neutralizing ability of UB-621 against HSV-1 and HSV-2 clinical isolates and the strains resistant to approved anti-HSV drugs. He also participates actively in many clinical trials including a Phase I study of a replication defective herpes simplex virus vaccine, study of patients with severe viral infections to define genetic variants associated with the disease, study of patients with EBV diseases, study with a respiratory syncytial virus challenge, and attempts to identify novel viruses in patients with unexplained syndromes.